gcov: return EOPNOTSUPP for unimplemented gcov sysctl

ENOSYS should only be used by unimplemented top-level syscalls. Use
EOPNOTSUPP instead.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Release-acked-by: Julien Grall <julien.grall@linaro.org>

diff --git a/xen/common/gcov/gcov.c b/xen/common/gcov/gcov.c
index 35653fd8d8efb26b83a819a842e7a62d857f83f5..283d2eec86bd69df7624d2d3178dc65bd99799cb 100644 (file)
--- a/xen/common/gcov/gcov.c
+++ b/xen/common/gcov/gcov.c
@@ -239,7 +239,7 @@ int sysctl_gcov_op(struct xen_sysctl_gcov_op *op)
         break;
 
     default:
-        ret = -ENOSYS;
+        ret = -EOPNOTSUPP;
         break;
     }